Tender wheels

We have a 3.4 mtr tender with Alu hull and Hypalon tubes. It is just weighs 60 kg. Our Suzuki outboard engine weighs 44 kg. All in all a light set, but still I cannot pull it up a beach by myself. I installed a set of Tenderwheels from new Zealand. They look very nice and fold away easily. It adds weight but I can now pull the tender up the beach by myself.